An Experimental Investigation on Concrete with Basalt Rock Fibers

Basalt fibre is formed from basalt rock when melted at a high temperature making it a non-metallic fibre. Basalt fibre reinforced concrete are good fire resistance, strength and light weight. These properties making it highly advantageous in the future to the construction business. There are many applications of basalt fibre like industrial, bridges, residential and highway etc. Fibres of basalt rock are used to make Basalt fibre, is cheaper and have improved physicomechanical properties which is very similar to the fibre glass and the carbon. They can replace many expensive materials resulting in wide range of applications in the field. The raw materials are available in all countries, making their production very simple. The biggest difficulties of the concrete and cement industry’s can be solved by the usage of basalt fibres. It is also used as composite and in the aerospace, automotive industries and fibre proof textile. Basalt fibres have no hazardous reactions with water or air and are explosion-proof and non-combustible. No chemical reaction will be produced that may damage environment or health when in contact with other chemicals. Reinforced plastics and steel maybe replaced by the basalt base composites. One kg of basalt reinforces equals to 9.6 kg of steel. Differences in compressive strength and split tensile test for concrete with and without basalt fibre by using cubes and cylinders are studied in this paper.

Experimental Study on Fractional Substitute of Cement with Glass Powder and Egg Shell Powder

Glass waste & Egg Shell Powder cannot be processed for useful applications and may end up in a landfill. In India nearly 30 tonnes of Glass waste in every metropolitan city generated every year. This establishes the ecological problem and is measured an additional problem on the previouslyclose-fitting landfill space.This article studies the possibility of using post-consumer Glass Waste Powder and Egg Shell in Powder form as a fractional substitute for conservative cement on concrete. During manufacturing of cement it emits a huge carbon di oxide and cause various effect to atmosphere. In this project tried to minimize the usage of cement by partial replacement of waste material from general utilities. Here I replaced cement by partial as glass powder and egg shell powder with a percentage of 0 %, 20%, 30%, and 40% and for its compressive strength up to 7, 14 and 28 Ages evaluate the strength properties. Comparison result has obtained by cube test & split tensile test. Since now a day’s the developing and developed countries are facing lack of post consumer dumping site and it has become extremely serious difficulty. This waste product should convert resource of by-product to control environmental pollutions.

Study of sisal fibre reinforced concrete in lintels

Concrete made with Portland cement has certain characteristics: - it is relatively strong in compression but weak in tension and tends to fail quickly when subjected to Tension. The deficiency in tension can be mitigated with conventional reinforcement & to some extent by the inclusion of a sufficient volume of Fibers. Change in the behavior of the Fiber – matrix composite after it has cracked, is due to the addition of Fibers (Balasubramanyan et al. 2015) Sisal Fiber is a promising concrete composite on account of its low density, less cost, increased specific strength and modulus, zero health risk, and it is easily cultivated in few countries including India. There has been an increasing interest in finding new applications for sisal-fiber which is traditionally used for making ropes, mats, carpets, fancy articles and others. The purpose of this research is to investigate the use of sisal fibers in concrete to enhance the mechanical characteristics of concrete and compare the differences in properties of concrete containing no fibers with fibers. The correlation on the effects of different type and geometry of fibers to the concrete is also the aim of the research. The scrutiny was carried out using several tests, which contained workability test, compressive test, split tensile test & flexural test. A total of ten mix batches of concrete containing 0%, 0.6%, 0.7%, 0.8% dosage of Fiber were cast. M25 grade concrete is considered for research as this grade is seen maximum consumption in industry. Keywords: concrete, sisal fibre, resistance.

Experimental Study of Pull-Out Failure on Sanko Hammer Drive Anchor Using Cast in Place and Post-Installed Methods on Ready-mix Concrete with Quality of 25 Mpa

Anchor serves to connect steel and concrete construction that can transfer steel pull-out load to concrete. Sanko hammer drive anchor usually has been available in the model of expansion that can be installed into concrete with cast in place and post installed methods. The experiment was aimed at comparing pull out failures of Sanko hammer drive expansion anchor using cast in place and post installed installation methods based on pull-out failure behavior. Experimental data were obtained from the pull-out strength test of Sanko hammer drive expansion anchor, compressive strength test and ready-mix concrete split tensile test, adhesion strength test and group anchor pull-out test which consists of four units of anchor with diameter of 10 mm planted 90 mm depth on T concrete beams with dimension of 300 mm x 300 mm x 150 mm as many as three beams for each of them using cast in place and post installed installation methods. The results of the experiment showed that concrete compressive tension value (f’c) is 25.69 MPa, anchor tension value (fu) is 383.25 MPa, anchor adhesion tension value (μ) with cast in place method is 2.25 MPa and post installed method is 1.56 MPa. Theoretically, the damage occurred in pull-out condition; while in the experiment, the test showed a difference in pull-out capacity using cast in place installation method of 38.38 kN with deformation of 13.81 mm, which is higher than theoretical value of 26,083 kN and using post installed method of 36.62 kN with deformation of 8.89 mm, which is higher than theoretical value of 18,084 kN and the experiment indicates that the anchor is perfectly pull-out.

An Experimental Investigation of Sustainable Concrete by using Paper Pulp and Crusher Dust

The objective of the research carried out in this paper highlights the critical sustainability parameter of reusability of waste materials in the construction sector of India. This paper followed firstly the intense literature survey to identify the waste materials for the replacement in the concrete mix, hereafter Paper Pulp (P.P) and Crusher Dust (C.D) indicates the similar nature like cement and sand respectively. Secondly, an assumed proportion of replacement of P.P by 2.5%, 5%,7.5%,10%, and 12.5% by cement, and 10%, 20%, and 30% replacement of C.D by sand is adopted in M20 mix design by volume method. Thirdly, the casting of 48 sample cubes size of 150 mm × 150 mm × 150 mm is performed for Average Compressive Strength test, and casting of 48 cylindrical cubes of 150 mm in diameter and 300 mm long for Split Tensile Strength. Fourthly, the results are carried out for 7th day testing along with 28th day testing for both tests along with slump variation of different samples. It is observed after the experimental analysis that the elite results compared to normal M20 mix are exhibited when the replacement variation of P.P is 5% along with 10% variation of C.D for both Average Compressive Strength and Split Tensile test. In addition to it, the highest slump is obtained for replacement variation of 12.5% P.P and 10%C.D.

EVALUATE THE INFLUENCE OF STEEL FIBERS ON THE STRENGTH OF CONCRETE USING PLASTIC WASTE AS FINE AGGREGATES

The plastic existence in abundance and its low biodegradability affect the environment. In recent years, researchers have tested numerous recycling techniques. However, each has its demerits. One such technique is recycling plastic as aggregates in concrete. It improves the concrete thermal insulation but depreciates its compressive and tensile strength, which is its core property in the construction industry. The objective of this research work is to efficiently utilize the plastic aggregate in concrete without deteriorating its strength with the use of steel fibers. In total eight concrete mix configurations were studied in this research. The result discussion includes compressive strength, split tensile test, and toughness index. The steel fiber used in the concrete mix with recycled plastic as fine aggregates improved the concrete strength. Its effects increase with an increase in % vol replacement of plastic aggregates with fine aggregates from 5 to 20.

Development of High Volume Fly Ash Concrete Incorporating Steel Fibre

Concrete is most frequently used composite material. Concrete is homogeneous mix of fine aggregate, Coarse aggregate and binding medium of concrete paste .Due to `high demand of cement Co2 emission is very high, It leads to global warming. So in this project high volume fly ash concrete was incorporated. Fly ash is the waste material obtained from thermal power plant. In this paper we investigated about high volume fly ash in different percentage of replacement 55, 60, 75 percentage. Layered pavement is incorporated with Steel fiber in a different aspect ratio (15, 30, 40).layered pavement will give good thermal expansive properties. By varying fly ash content and Steel fibers Aspect ratio of different mixes were arrived hardened properties of these nine mixes were arrived such as Compression test, Split tensile test and Flexural test.

Influence of Stone Quarry Dust and Jute Fibre on the Mechanical Properties of Concrete

In the present era, concrete is one of the extensively used construction materials. Enormous efforts are made to improve the tensile strength of concrete due to its weakness in tension. In this paper, an attempt is made to enhance the tensile strength of concrete by introducing jute fiber in concrete. Waste from the crushing plants is used as a replacement of fine aggregates to achieve good compressive strength and jute fiber is added to enhance tensile strength. The length of the jute fiber used is 25mm and the percentage taken was 0.25%, 0.5% and 0.75% of the volume of concrete. Stone quarry dust is replaced as 10%, 20%, 30% and 40% of the weight of fine aggregates. The compressive test split tensile test and the flexural test is performed at 7, 14 and 28 days by casting cubes, cylinders, and beams for the respective tests. Experimental test under a controlled environment revealed that stone quarry dust raised 13% compressive strength at 28 days and jute fiber raised 21.15% tensile strength at 28 days. Further investigation is carried out by introducing both stone quarry dust and jute fiber into the concrete and optimal results are discussed. Final test exposed that amalgamation of jute fiber and stone quarry dust imposed a positive impact on compressive, split tensile and flexural strength of concrete

Partial Replacement of Aluminium Fabrication Waste in Cement Concrete

Aluminium fabric wastes are available in the aluminium fabrication industries all over the world. In this project the waste material from Salem aluminium fabrication industry is taken into account. Aluminium fabric wastes are to be used as a replacement for fine aggregate in ordinary concrete. fine,coarse,cement intial test check. Experiments for its properties hardened state will be also carried out.1:1.23:2.19 mix will be provided for partial and full replacement of fine aggregate with aluminium fabric wastes. Optimum Percentage of aluminium waste will be foundout by 0% to 100% removal of sand with aluminium waste.Cubes and cylinders are manufacture and will be cured to conduct compressive strength and split tensile test on 7 days and 28 days test.Compare 20,40,60,80,100 percentage reduction in fine aggregate to add aluminium fabric waste get good result in 40 percentage.Both compressive and tensile test good result in 40 percentage reduction.